I _almost_ got this to work, I have R 3.6.3 but still get the following
error:
* package: r-3.6.2
log file: /home/lmiller/sage-9.0/logs/pkgs/r-3.6.2.log
build directory: /home/lmiller/sage-9.0/local/var/tmp/sage/build/r-3.6.2
Presumably, there is a flag or configure I can send make to use 3.6.3
correct?
After all this is addressed, how to make this available system wide? Is
there a script in the SAGE_LOCAL that will do it? I know that's a basic
question but I'm curious. I removed Sage 8 so there should be no conflict.
On Wednesday, April 8, 2020 at 12:56:29 PM UTC-5, hbetx9 wrote:
>
> On second thought, I should just fix this now.
>
> Am I correct I need to install package r-3.6.2 and rebuld?
>
> On Wednesday, April 8, 2020 at 11:54:39 AM UTC-5, hbetx9 wrote:
>>
>> Tried from source and got this error:
>>
>> Error building Sage.
>>
>> The following package(s) may have failed to build (not necessarily
>> during this run of 'make all-start'):
>>
>> * package: r-3.6.2
>> log file: /home/lmiller/sage-9.0/logs/pkgs/r-3.6.2.log
>> build directory: /home/lmiller/sage-9.0/local/var/tmp/sage/build/r-3.6.2
>>
>> which I'm guessing is only needed if one wants to use integration with R.
>> At this time I don't but in future I might, should I install R and
>> rebuild? Build took a LONG time.
>>
>> Also, version 9 is now in ~/SAGE_ROOT/local but the system version is
>> still 8.1. I guess I need to modify path or create a symlink to get sage
>> available to terminal on boot?
>>
>> Finally, can the color scheme for sage on the terminal be changed? I used
>> a dark background so this is not easy to read.
>>
>> Thanks in advance!
>>
>> On Wednesday, April 8, 2020 at 12:14:48 AM UTC-5, Dima Pasechnik wrote:
>>>
>>> On Wed, Apr 8, 2020 at 11:05 AM hbetx9 <lance....@gmail.com> wrote:
>>>
>>> > I installed from package on Mint 19.3. I'm happy to run whatever
>>> is needed to help diagnose. For context, I have installed python 2.7.17 and
>>> the package pulled sage 8.1. I'm not sure why the packages didn't pull the
>>> most up to date. Is there a PPA I need to add?
>>> >
>>>
>>> my understanding is that MInt 19 by default follows Ubunu 18.04 (which
>>> indeed has Sage 8.1).
>>> We'd recommend you to build Sage (say, the latest stable version, 9.0)
>>> from source instead.
>>> While latest Ubuntu does have Sage 9.0, I don't know how to get it
>>> installed on your Mint, from PPA or otherwise.
>>> Perhaps you can ask on a Mint forum.
>>>
>>> HTH
>>> Dima
>>>
>>>
>>> > Best,
>>> > Lance
>>> >
>>> > On Saturday, April 4, 2020 at 9:49:09 PM UTC-5, Dima Pasechnik wrote:
>>> >>
>>> >> On Sun, Apr 5, 2020 at 7:44 AM Lance Edward Miller <lem...@uark.edu>
>>> wrote:
>>> >> >
>>> >> > After install on Linux Mint 19.3, I got the following crash report.
>>> Any help is appreciated.
>>> >>
>>> >> What exactly have you installed?
>>> >> A binary installation, or done a build from sources?
>>> >>
>>> >> >
>>> >> >
>>> ***************************************************************************
>>> >> >
>>> >> > IPython post-mortem report
>>> >> >
>>> >> > {'commit_hash': u'b467d487e',
>>> >> > 'commit_source': 'installation',
>>> >> > 'default_encoding': 'UTF-8',
>>> >> > 'ipython_path': '/usr/lib/python2.7/dist-packages/IPython',
>>> >> > 'ipython_version': '5.5.0',
>>> >> > 'os_name': 'posix',
>>> >> > 'platform':
>>> 'Linux-5.3.0-40-generic-x86_64-with-LinuxMint-19.3-tricia',
>>> >> > 'sys_executable': '/usr/bin/python',
>>> >> > 'sys_platform': 'linux2',
>>> >> > 'sys_version': '2.7.17 (default, Nov 7 2019, 10:07:09) \n[GCC
>>> 7.4.0]'}
>>> >> >
>>> >> >
>>> ***************************************************************************
>>> >> >
>>> >> >
>>> >> >
>>> >> >
>>> ***************************************************************************
>>> >> >
>>> >> > Crash traceback:
>>> >> >
>>> >> >
>>> ---------------------------------------------------------------------------
>>> >> >
>>> ---------------------------------------------------------------------------
>>> >> > ImportError Python 2.7.17:
>>> /usr/bin/python
>>> >> > Sat Apr 4
>>> 18:39:09 2020
>>> >> > A problem occurred executing Python code. Here is the sequence of
>>> function
>>> >> > calls leading up to the error, with the most recent (innermost)
>>> call last.
>>> >> > /usr/share/sagemath/bin/sage-ipython in <module>()
>>> >> > 1 #!/usr/bin/env python
>>> >> > 2 # -*- coding: utf-8 -*-
>>> >> > 3 """
>>> >> > 4 Sage IPython startup script.
>>> >> > 5 """
>>> >> > 6
>>> >> > 7 from sage.repl.interpreter import SageTerminalApp
>>> >> > 8
>>> >> > 9 app = SageTerminalApp.instance()
>>> >> > ---> 10 app.initialize()
>>> >> > global app.initialize = <bound method
>>> SageTerminalApp.initialize of <sage.repl.interpreter.SageTerminalApp object
>>> at 0x7f76836e7150>>
>>> >> > 11 app.start()
>>> >> >
>>> >> > <decorator-gen-110> in
>>> initialize(self=<sage.repl.interpreter.SageTerminalApp object>, argv=None)
>>> >> >
>>> >> > /usr/lib/python2.7/dist-packages/traitlets/config/application.pyc
>>> in catch_config_error(method=<function initialize>,
>>> app=<sage.repl.interpreter.SageTerminalApp object>, *args=(None,),
>>> **kwargs={})
>>> >> > 72 TRAITLETS_APPLICATION_RAISE_CONFIG_FILE_ERROR = False
>>> >> > 73 else:
>>> >> > 74 raise ValueError("Unsupported value for environment
>>> variable: 'TRAITLETS_APPLICATION_RAISE_CONFIG_FILE_ERROR' is set to '%s'
>>> which is none of {'0', '1', 'false', 'true', ''}."% _envvar )
>>> >> > 75
>>> >> > 76
>>> >> > 77 @decorator
>>> >> > 78 def catch_config_error(method, app, *args, **kwargs):
>>> >> > 79 """Method decorator for catching invalid config
>>> (Trait/ArgumentErrors) during init.
>>> >> > 80
>>> >> > 81 On a TraitError (generally caused by bad config), this
>>> will print the trait's
>>> >> > 82 message, and exit the app.
>>> >> > 83
>>> >> > 84 For use on init methods, to prevent invoking excepthook
>>> on invalid input.
>>> >> > 85 """
>>> >> > 86 try:
>>> >> > ---> 87 return method(app, *args, **kwargs)
>>> >> > method = <function initialize at 0x7f76806919d0>
>>> >> > app = <sage.repl.interpreter.SageTerminalApp object at
>>> 0x7f76836e7150>
>>> >> > args = (None,)
>>> >> > kwargs = {}
>>> >> > 88 except (TraitError, ArgumentError) as e:
>>> >> > 89 app.print_help()
>>> >> > 90 app.log.fatal("Bad config encountered during
>>> initialization:")
>>> >> > 91 app.log.fatal(str(e))
>>> >> > 92 app.log.debug("Config at the time: %s", app.config)
>>> >> > 93 app.exit(1)
>>> >> > 94
>>> >> > 95
>>> >> > 96 class ApplicationError(Exception):
>>> >> > 97 pass
>>> >> > 98
>>> >> > 99
>>> >> > 100 class LevelFormatter(logging.Formatter):
>>> >> > 101 """Formatter with additional `highlevel` record
>>> >> > 102
>>> >> >
>>> >> > /usr/lib/python2.7/dist-packages/IPython/terminal/ipapp.pyc in
>>> initialize(self=<sage.repl.interpreter.SageTerminalApp object>, argv=None)
>>> >> > 301
>>> >> > 302 return super(TerminalIPythonApp,
>>> self).parse_command_line(argv)
>>> >> > 303
>>> >> > 304 @catch_config_error
>>> >> > 305 def initialize(self, argv=None):
>>> >> > 306 """Do actions after construct, but before starting
>>> the app."""
>>> >> > 307 super(TerminalIPythonApp, self).initialize(argv)
>>> >> > 308 if self.subapp is not None:
>>> >> > 309 # don't bother initializing further, starting
>>> subapp
>>> >> > 310 return
>>> >> > 311 # print self.extra_args
>>> >> > 312 if self.extra_args and not self.something_to_run:
>>> >> > 313 self.file_to_run = self.extra_args[0]
>>> >> > 314 self.init_path()
>>> >> > 315 # create the shell
>>> >> > --> 316 self.init_shell()
>>> >> > self.init_shell = <bound method SageTerminalApp.init_shell
>>> of <sage.repl.interpreter.SageTerminalApp object at 0x7f76836e7150>>
>>> >> > 317 # and draw the banner
>>> >> > 318 self.init_banner()
>>> >> > 319 # Now a variety of things that happen after the
>>> banner is printed.
>>> >> > 320 self.init_gui_pylab()
>>> >> > 321 self.init_extensions()
>>> >> > 322 self.init_code()
>>> >> > 323
>>> >> > 324 def init_shell(self):
>>> >> > 325 """initialize the InteractiveShell instance"""
>>> >> > 326 # Create an InteractiveShell instance.
>>> >> > 327 # shell.display_banner should always be False for
>>> the terminal
>>> >> > 328 # based app, because we call shell.show_banner() by
>>> hand below
>>> >> > 329 # so the banner shows *before* all extension
>>> loading stuff.
>>> >> > 330 self.shell =
>>> self.interactive_shell_class.instance(parent=self,
>>> >> > 331 profile_dir=self.profile_dir,
>>> >> >
>>> >> > /usr/lib/python2.7/dist-packages/sage/repl/interpreter.pyc in
>>> init_shell(self=<sage.repl.interpreter.SageTerminalApp object>)
>>> >> > 730 This code is based on
>>> >> > 731 :meth:`TerminalIPythonApp.init_shell`.
>>> >> > 732
>>> >> > 733 EXAMPLES::
>>> >> > 734
>>> >> > 735 sage: from sage.repl.interpreter import
>>> SageTerminalApp
>>> >> > 736 sage: app = SageTerminalApp.instance()
>>> >> > 737 sage: app.shell
>>> >> > 738 <sage.repl.interpreter.SageTestShell object at
>>> 0x...>
>>> >> > 739 """
>>> >> > 740 # Shell initialization
>>> >> > 741 self.shell = self.shell_class.instance(
>>> >> > 742 parent=self,
>>> >> > 743 config=self.config,
>>> >> > 744 profile_dir=self.profile_dir,
>>> >> > --> 745 ipython_dir=self.ipython_dir)
>>> >> > global ipython_dir = undefined
>>> >> > self.ipython_dir = u'/home/lmiller/.ipython'
>>> >> > 746 self.shell.configurables.append(self)
>>> >> > 747 self.shell.has_sage_extensions = SAGE_EXTENSION in
>>> self.extensions
>>> >> > 748
>>> >> > 749 # Load the %lprun extension if available
>>> >> > 750 try:
>>> >> > 751 import line_profiler
>>> >> > 752 except ImportError:
>>> >> > 753 pass
>>> >> > 754 else:
>>> >> > 755 self.extensions.append('line_profiler')
>>> >> > 756
>>> >> > 757 if self.shell.has_sage_extensions:
>>> >> > 758 self.extensions.remove(SAGE_EXTENSION)
>>> >> > 759
>>> >> > 760 # load sage extension here to get a crash if
>>> >> >
>>> >> > /usr/lib/python2.7/dist-packages/traitlets/config/configurable.pyc
>>> in instance(cls=<class
>>> 'sage.repl.interpreter.SageTerminalInteractiveShell'>, *args=(),
>>> **kwargs={'config': {'InteractiveShell': {'term_title': True, 'color...ue},
>>> 'SageTerminalApp': {'force_interact': True}}, 'ipython_dir':
>>> u'/home/lmiller/.ipython', 'parent': <sage.repl.interpreter.SageTerminalApp
>>> object>, 'profile_dir': <IPython.core.profiledir.ProfileDir object>})
>>> >> > 397 >>> class Foo(SingletonConfigurable): pass
>>> >> > 398 >>> foo = Foo.instance()
>>> >> > 399 >>> foo == Foo.instance()
>>> >> > 400 True
>>> >> > 401
>>> >> > 402 Create a subclass that is retrived using the base
>>> class instance::
>>> >> > 403
>>> >> > 404 >>> class Bar(SingletonConfigurable): pass
>>> >> > 405 >>> class Bam(Bar): pass
>>> >> > 406 >>> bam = Bam.instance()
>>> >> > 407 >>> bam == Bar.instance()
>>> >> > 408 True
>>> >> > 409 """
>>> >> > 410 # Create and save the instance
>>> >> > 411 if cls._instance is None:
>>> >> > --> 412 inst = cls(*args, **kwargs)
>>> >> > inst = undefined
>>> >> > cls = <class
>>> 'sage.repl.interpreter.SageTerminalInteractiveShell'>
>>> >> > args = ()
>>> >> > kwargs = {'ipython_dir': u'/home/lmiller/.ipython',
>>> 'profile_dir': <IPython.core.profiledir.ProfileDir object at
>>> 0x7f76806b4d50>, 'config': {'InteractiveShell': {'term_title': True,
>>> 'colors': 'LightBG', 'confirm_exit': False, 'prompts_class': <class
>>> 'sage.repl.prompts.SagePrompts'>, 'separate_in': '',
>>> 'ast_node_interactivity': 'all', 'simple_prompt': False},
>>> 'InteractiveShellApp': {'extensions': ['sage']}, 'TerminalIPythonApp':
>>> {'shell_class': <class
>>> 'sage.repl.interpreter.SageTerminalInteractiveShell'>, 'display_banner':
>>> False, 'test_shell': False, 'verbose_crash': True}, 'SageTerminalApp':
>>> {'force_interact': True}}, 'parent': <sage.repl.interpreter.SageTerminalApp
>>> object at 0x7f76836e7150>}
>>> >> > 413 # Now make sure that the instance will also be
>>> returned by
>>> >> > 414 # parent classes' _instance attribute.
>>> >> > 415 for subclass in cls._walk_mro():
>>> >> > 416 subclass._instance = inst
>>> >> > 417
>>> >> > 418 if isinstance(cls._instance, cls):
>>> >> > 419 return cls._instance
>>> >> > 420 else:
>>> >> > 421 raise MultipleInstanceError(
>>> >> > 422 'Multiple incompatible subclass instances
>>> of '
>>> >> > 423 '%s are being created.' % cls.__name__
>>> >> > 424 )
>>> >> > 425
>>> >> > 426 @classmethod
>>> >> > 427 def initialized(cls):
>>> >> >
>>> >> >
>>> /usr/lib/python2.7/dist-packages/IPython/terminal/interactiveshell.pyc in
>>> __init__(self=<sage.repl.interpreter.SageTerminalInteractiveShell object>,
>>> *args=(), **kwargs={'config': {'InteractiveShell': {'term_title': True,
>>> 'color...ue}, 'SageTerminalApp': {'force_interact': True}}, 'ipython_dir':
>>> u'/home/lmiller/.ipython', 'parent': <sage.repl.interpreter.SageTerminalApp
>>> object>, 'profile_dir': <IPython.core.profiledir.ProfileDir object>})
>>> >> > 423
>>> >> > 424 def init_alias(self):
>>> >> > 425 # The parent class defines aliases that can be
>>> safely used with any
>>> >> > 426 # frontend.
>>> >> > 427 super(TerminalInteractiveShell, self).init_alias()
>>> >> > 428
>>> >> > 429 # Now define aliases that only make sense on the
>>> terminal, because they
>>> >> > 430 # need direct access to the console in a way that
>>> we can't emulate in
>>> >> > 431 # GUI or web frontend
>>> >> > 432 if os.name == 'posix':
>>> >> > 433 for cmd in ['clear', 'more', 'less', 'man']:
>>> >> > 434 self.alias_manager.soft_define_alias(cmd,
>>> cmd)
>>> >> > 435
>>> >> > 436
>>> >> > 437 def __init__(self, *args, **kwargs):
>>> >> > --> 438 super(TerminalInteractiveShell,
>>> self).__init__(*args, **kwargs)
>>> >> > global super = undefined
>>> >> > global TerminalInteractiveShell = <class
>>> 'IPython.terminal.interactiveshell.TerminalInteractiveShell'>
>>> >> > self.__init__ = <bound method
>>> SageTerminalInteractiveShell.__init__ of
>>> <sage.repl.interpreter.SageTerminalInteractiveShell object at
>>> 0x7f76806b4910>>
>>> >> > args = ()
>>> >> > kwargs = {'profile_dir':
>>> <IPython.core.profiledir.ProfileDir object at 0x7f76806b4d50>, 'config':
>>> {'InteractiveShell': {'term_title': True, 'colors': 'LightBG',
>>> 'confirm_exit': False, 'prompts_class': <class
>>> 'sage.repl.prompts.SagePrompts'>, 'separate_in': '',
>>> 'ast_node_interactivity': 'all', 'simple_prompt': False},
>>> 'InteractiveShellApp': {'extensions': ['sage']}, 'TerminalIPythonApp':
>>> {'shell_class': <class
>>> 'sage.repl.interpreter.SageTerminalInteractiveShell'>, 'display_banner':
>>> False, 'test_shell': False, 'verbose_crash': True}, 'SageTerminalApp':
>>> {'force_interact': True}}, 'ipython_dir': u'/home/lmiller/.ipython',
>>> 'parent': <sage.repl.interpreter.SageTerminalApp object at 0x7f76836e7150>}
>>> >> > 439 self.init_prompt_toolkit_cli()
>>> >> > 440 self.init_term_title()
>>> >> > 441 self.keep_running = True
>>> >> > 442
>>> >> > 443 self.debugger_history = InMemoryHistory()
>>> >> > 444
>>> >> > 445 def ask_exit(self):
>>> >> > 446 self.keep_running = False
>>> >> > 447
>>> >> > 448 rl_next_input = None
>>> >> > 449
>>> >> > 450 def pre_prompt(self):
>>> >> > 451 if self.rl_next_input:
>>> >> > 452 # We can't set the buffer here, because it will
>>> be reset just after
>>> >> > 453 # this. Adding a callable to pre_run_callables
>>> does what we need
>>> >> >
>>> >> > /usr/lib/python2.7/dist-packages/IPython/core/interactiveshell.pyc
>>> in __init__(self=<sage.repl.interpreter.SageTerminalInteractiveShell
>>> object>, ipython_dir=u'/home/lmiller/.ipython',
>>> profile_dir=<IPython.core.profiledir.ProfileDir object>, user_module=None,
>>> user_ns=None, custom_exceptions=((), None), **kwargs={'config':
>>> {'InteractiveShell': {'term_title': True, 'color...ue}, 'SageTerminalApp':
>>> {'force_interact': True}}, 'parent': <sage.repl.interpreter.SageTerminalApp
>>> object>})
>>> >> > 488 self.init_builtins()
>>> >> > 489
>>> >> > 490 # The following was in post_config_initialization
>>> >> > 491 self.init_inspector()
>>> >> > 492 if py3compat.PY3:
>>> >> > 493 self.raw_input_original = input
>>> >> > 494 else:
>>> >> > 495 self.raw_input_original = raw_input
>>> >> > 496 self.init_completer()
>>> >> > 497 # TODO: init_io() needs to happen before
>>> init_traceback handlers
>>> >> > 498 # because the traceback handlers hardcode the
>>> stdout/stderr streams.
>>> >> > 499 # This logic in in debugger.Pdb and should
>>> eventually be changed.
>>> >> > 500 self.init_io()
>>> >> > 501 self.init_traceback_handlers(custom_exceptions)
>>> >> > 502 self.init_prompts()
>>> >> > --> 503 self.init_display_formatter()
>>> >> > self.init_display_formatter = <bound method
>>> SageTerminalInteractiveShell.init_display_formatter of
>>> <sage.repl.interpreter.SageTerminalInteractiveShell object at
>>> 0x7f76806b4910>>
>>> >> > 504 self.init_display_pub()
>>> >> > 505 self.init_data_pub()
>>> >> > 506 self.init_displayhook()
>>> >> > 507 self.init_magics()
>>> >> > 508 self.init_alias()
>>> >> > 509 self.init_logstart()
>>> >> > 510 self.init_pdb()
>>> >> > 511 self.init_extension_manager()
>>> >> > 512 self.init_payload()
>>> >> > 513 self.init_deprecation_warnings()
>>> >> > 514 self.hooks.late_startup_hook()
>>> >> > 515 self.events.trigger('shell_initialized', self)
>>> >> > 516 atexit.register(self.atexit_operations)
>>> >> > 517
>>> >> > 518 def get_ipython(self):
>>> >> >
>>> >> > /usr/lib/python2.7/dist-packages/sage/repl/interpreter.pyc in
>>> init_display_formatter(self=<sage.repl.interpreter.SageTerminalInteractiveShell
>>>
>>> object>)
>>> >> > 245
>>> >> > 246 sage: from sage.repl.interpreter import
>>> SageTerminalInteractiveShell
>>> >> > 247 sage: SageTerminalInteractiveShell() # not tested
>>> >> > 248 <sage.repl.interpreter.SageNotebookInteractiveShell
>>> object at 0x...>
>>> >> > 249 """
>>> >> > 250
>>> >> > 251 def init_display_formatter(self):
>>> >> > 252 """
>>> >> > 253 Switch to the Sage IPython commandline rich output
>>> backend
>>> >> > 254
>>> >> > 255 EXAMPLES::
>>> >> > 256
>>> >> > 257 sage: from sage.repl.interpreter import
>>> SageTerminalInteractiveShell
>>> >> > 258 sage:
>>> SageTerminalInteractiveShell().init_display_formatter() # not tested
>>> >> > 259 """
>>> >> > --> 260 from sage.repl.rich_output.backend_ipython import
>>> BackendIPythonCommandline
>>> >> > global sage.repl.rich_output.backend_ipython = undefined
>>> >> > BackendIPythonCommandline = undefined
>>> >> > 261 backend = BackendIPythonCommandline()
>>> >> > 262
>>> backend.get_display_manager().switch_backend(backend, shell=self)
>>> >> > 263
>>> >> > 264
>>> >> > 265 class SageTestShell(SageShellOverride,
>>> TerminalInteractiveShell):
>>> >> > 266 """
>>> >> > 267 Test Shell
>>> >> > 268
>>> >> > 269 Care must be taken in these doctests to quit the test
>>> shell in
>>> >> > 270 order to switch back the rich output display backend to
>>> the
>>> >> > 271 doctest backend.
>>> >> > 272
>>> >> > 273 EXAMPLES::
>>> >> > 274
>>> >> > 275 sage: from sage.repl.interpreter import
>>> get_test_shell
>>> >> >
>>> >> > /usr/lib/python2.7/dist-packages/sage/repl/rich_output/__init__.py
>>> in <module>()
>>> >> > 1 # -*- encoding: utf-8 -*-
>>> >> > 2
>>> >> > ----> 3 from .display_manager import get_display_manager
>>> >> > global display_manager = undefined
>>> >> > global get_display_manager = undefined
>>> >> > 4 from .pretty_print import pretty_print
>>> >> > 5
>>> >> > 6
>>> >> >
>>> >> >
>>> /usr/lib/python2.7/dist-packages/sage/repl/rich_output/display_manager.py
>>> in <module>()
>>> >> > 24 The Sage display manager using the doctest backend
>>> >> > 25 """
>>> >> > 26
>>> >> > 27
>>> #*****************************************************************************
>>>
>>>
>>> >> > 28 # Copyright (C) 2015 Volker Braun <vbrau...@gmail.com>
>>>
>>> >> > 29 #
>>> >> > 30 # Distributed under the terms of the GNU General Public
>>> License (GPL)
>>> >> > 31 # as published by the Free Software Foundation; either
>>> version 2 of
>>> >> > 32 # the License, or (at your option) any later version.
>>> >> > 33 # http://www.gnu.org/licenses/
>>> >> > 34
>>> #*****************************************************************************
>>>
>>>
>>> >> > 35
>>> >> > 36
>>> >> > 37 import warnings
>>> >> > 38
>>> >> > ---> 39 from sage.structure.sage_object import SageObject
>>> >> > global sage.structure.sage_object = undefined
>>> >> > global SageObject = undefined
>>> >> > 40 from sage.repl.rich_output.output_basic import (
>>> >> > 41 OutputPlainText, OutputAsciiArt, OutputUnicodeArt,
>>> OutputLatex,
>>> >> > 42 )
>>> >> > 43 from sage.repl.rich_output.preferences import
>>> DisplayPreferences
>>> >> > 44
>>> >> > 45
>>> >> > 46 class DisplayException(Exception):
>>> >> > 47 """
>>> >> > 48 Base exception for all rich output-related exceptions.
>>> >> > 49
>>> >> > 50 EXAMPLES::
>>> >> > 51
>>> >> > 52 sage: from sage.repl.rich_output.display_manager
>>> import DisplayException
>>> >> > 53 sage: raise DisplayException('foo')
>>> >> > 54 Traceback (most recent call last):
>>> >> >
>>> >> > ImportError: No module named sage_object
>>> >> >
>>> >> >
>>> ***************************************************************************
>>> >> >
>>> >> > --
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>>>
>>> >
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>>>
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